I have a shapefile with hundreds of caribou movement corridors. using this data, I am trying to create a map displaying the frequency of use to determine important movement and migration pathways for different herds.
The original shapefile has several years of data of individual collared caribou movements derived using Brownian Bridge Movement Modelling. From this file, I have successfully created my desired outcome by: 1. Using the union tool 2. Multipart to singlepart 3. Spatial join to itself 4. Change shapefile symbology. The problem I am now encountering is that I have extended my study dates and included several years into a single model. When I try to follow the above steps with the large dataset, I a thrown an error code 'insufficient memory' at the spatial join step (3.). Clearly, my computer does not have enough ram to run this calculation, so I have been trying to divide my shapefile into 4 equal parts, using a fishnet grid, which I plan to merge back together after I run the spatial join on each parcel. I have successfully created the grid and again using the Union tool, created 4 separate shapefiles of data. Now, when I try to 'split' the caribou polygons from the grid attribute, the operation fails. I understand that ArcGIS pro and perhaps a patch for arcmap could help my computer access more of its ram to run such operation, however, I do not currently have access to these, so am looking for some kind of alternative method of achieving my desired results.
I will try to add some images shortly.